Flame retardant organic resin composition

Abstract

A flame retardant organic resin composition comprising (A) 100 parts by weight of an aromatic ring-containing organic resin and (B) 0.01 to 50 parts by weight of a branched organopolysiloxane described by average molecular formula (R12SiO2/2)a(R2SiO3/2)b(SiO4/2)c(R33O1/2)d(HO1/2)e, where R1, R2, and R3 are monovalent hydrocarbon groups selected from the group consisting of alkyl groups comprising 1 to 12 carbon atoms, alkenyl groups comprising 1 to 12 carbon atoms, and aryl groups comprising 6 to 12 carbon atoms, the content of aryl groups as a proportion of all the monovalent hydrocarbon groups is in a range of 20 mol % to 80 mol %, subscripts a and b are positive numbers, and subscripts c, d, and e are 0 or positive numbers, having a weight average molecular weight within a range of 300 to 10,000, and in which the content of silicon-bonded hydroxyl groups is not more than 1 wt %.

Dependencies are inferred from the claim text.